Example implementations relate to a power control system for controlling transmission of power from one or more power supply devices to one or more loads of a modular server enclosure. The power control system includes an electronic fuse and a threshold control unit. The electronic fuse is connected between one or more loads and the one or more power supply devices of the modular server enclosure. The threshold control unit is connected to the electronic fuse and to the one or more power supply devices. The threshold control circuit dynamically adjusts a threshold current for the electronic fuse based on a power supply capacity of the one or more power supply devices. The electronic fuse controls the transmission of the power from the one or more power supply devices to the one or more loads based on threshold current and a load current drawn by the one or more loads.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The power control system of claim 1, wherein the electronic fuse controls the transmission of the power by discontinuing the transmission of the power to the one or more loads if the threshold current is less than the load current.
3. The power control system of claim 1, wherein the electronic fuse controls the transmission of the power by continuing the transmission of the power to the one or more loads if the threshold current is greater than the load current.
4. The power control system of claim 1, wherein the electronic fuse comprises a power good output pin that generates a power good signal if the threshold current is greater than the load current.
5. The power control system of claim 4, further comprising a buffer amplifier connected to the pulse generator circuit to receive the trigger pulse, wherein the buffer amplifier is further connected to the electronic fuse to receive the power good signal, and wherein the buffer amplifier generates a reset signal to reset the electronic fuse to allow the transmission of the power from the one or more power supply devices to the one or more loads based on receipt of the trigger pulse from the pulse generator circuit and the power good signal from the power good output pin.
6. The power control system of claim 1, wherein the threshold control circuit comprises a control network and a controller, wherein the control network comprises a plurality of parallel circuit paths each comprising a resistor and a switch, and wherein the controller generates control signals based on a number of power supply devices connected to the modular server enclosure, to control operation of each switch for adjusting an effective resistance of the control network to enable determination of the power supply capacity of the one or more power supply devices and dynamic adjustment of the threshold current.
8. The modular server enclosure of claim 7, wherein the electronic fuse controls the transmission of the power by discontinuing the transmission of the power to the one or more loads if the threshold current is less than the load current.
9. The modular server enclosure of claim 7, wherein the electronic fuse controls the transmission of the power by continuing the transmission of the power to the one or more loads if the threshold current is greater than the load current.
10. The modular server enclosure of claim 7, wherein the electronic fuse comprises a power good output pin that generates a power good signal if the threshold current is greater than the load current.
11. The modular server enclosure of claim 10, further comprising a buffer amplifier connected to the pulse generator circuit to receive the trigger pulse, wherein the buffer amplifier is further connected to the electronic fuse to receive the power good signal, and wherein the buffer amplifier generates a reset signal to reset the electronic fuse to allow the transmission of the power from the one or more power supply devices to the one or more loads based on receipt of the trigger pulse from the pulse generator circuit and the power good signal from the power good output pin.
12. The modular server enclosure of claim 7, wherein the threshold control circuit comprises a control network and a controller, wherein the control network comprises a plurality of parallel circuit paths each comprising a resistor and a switch, and wherein the controller generates control signals based on a number of power supply devices connected to the modular server enclosure, to control operation of each switch for adjusting an effective resistance of the control network to enable determination of the power supply capacity of the one or more power supply devices and dynamic adjustment of the threshold current.
14. The method of claim 13, wherein controlling the transmission of the power comprises discontinuing the transmission of the power to the one or more loads if the threshold current is less than the load current.
16. The method of claim 13, wherein controlling the transmission of the power comprises continuing the transmission of the power to the one or more loads if the threshold current is greater than the load current.
17. The method of claim 13, wherein the threshold control circuit comprises a control network and a controller, wherein the control network comprises a plurality of parallel circuit paths each comprising a resistor and a switch, and wherein the controller generates control signals based on a number of power supply devices connected to the modular server enclosure, to control operation of each switch for adjusting an effective resistance of the control network to enable determination of the power supply capacity of the one or more power supply devices and dynamic adjustment of the threshold current.
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September 3, 2021
May 9, 2023
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